Merge branch 'linus' into release

Conflicts:
	arch/x86/kernel/cpu/cpufreq/longhaul.c

Signed-off-by: Len Brown <len.brown@intel.com>

12 files changed, 360 insertions, 95 deletions

diff --git a/drivers/spi/atmel_spi.c b/drivers/spi/atmel_spi.c
index 56ff3e6864e..12e443cc4ac 100644
--- a/drivers/spi/atmel_spi.c
+++ b/drivers/spi/atmel_spi.c
@@ -322,7 +322,7 @@ static void atmel_spi_next_message(struct spi_master *master)
 	spi = msg->spi;
 
 	dev_dbg(master->dev.parent, "start message %p for %s\n",
-			msg, spi->dev.bus_id);
+			msg, dev_name(&spi->dev));
 
 	/* select chip if it's not still active */
 	if (as->stay) {
@@ -627,7 +627,7 @@ static int atmel_spi_setup(struct spi_device *spi)
 		if (!asd)
 			return -ENOMEM;
 
-		ret = gpio_request(npcs_pin, spi->dev.bus_id);
+		ret = gpio_request(npcs_pin, dev_name(&spi->dev));
 		if (ret) {
 			kfree(asd);
 			return ret;
@@ -668,7 +668,7 @@ static int atmel_spi_transfer(struct spi_device *spi, struct spi_message *msg)
 	as = spi_master_get_devdata(spi->master);
 
 	dev_dbg(controller, "new message %p submitted for %s\n",
-			msg, spi->dev.bus_id);
+			msg, dev_name(&spi->dev));
 
 	if (unlikely(list_empty(&msg->transfers)))
 		return -EINVAL;
@@ -803,7 +803,7 @@ static int __init atmel_spi_probe(struct platform_device *pdev)
 	as->clk = clk;
 
 	ret = request_irq(irq, atmel_spi_interrupt, 0,
-			pdev->dev.bus_id, master);
+			dev_name(&pdev->dev), master);
 	if (ret)
 		goto out_unmap_regs;
 
diff --git a/drivers/spi/mpc52xx_psc_spi.c b/drivers/spi/mpc52xx_psc_spi.c
index 3b97803e1d1..68c77a91159 100644
--- a/drivers/spi/mpc52xx_psc_spi.c
+++ b/drivers/spi/mpc52xx_psc_spi.c
@@ -429,7 +429,7 @@ static int __init mpc52xx_psc_spi_do_probe(struct device *dev, u32 regaddr,
 	INIT_LIST_HEAD(&mps->queue);
 
 	mps->workqueue = create_singlethread_workqueue(
-		master->dev.parent->bus_id);
+		dev_name(master->dev.parent));
 	if (mps->workqueue == NULL) {
 		ret = -EBUSY;
 		goto free_irq;
diff --git a/drivers/spi/omap2_mcspi.c b/drivers/spi/omap2_mcspi.c
index 454a2712e62..d6d0c5d241c 100644
--- a/drivers/spi/omap2_mcspi.c
+++ b/drivers/spi/omap2_mcspi.c
@@ -1003,7 +1003,7 @@ static int __init omap2_mcspi_probe(struct platform_device *pdev)
 		goto err1;
 	}
 	if (!request_mem_region(r->start, (r->end - r->start) + 1,
-			pdev->dev.bus_id)) {
+			dev_name(&pdev->dev))) {
 		status = -EBUSY;
 		goto err1;
 	}
@@ -1021,13 +1021,13 @@ static int __init omap2_mcspi_probe(struct platform_device *pdev)
 	spin_lock_init(&mcspi->lock);
 	INIT_LIST_HEAD(&mcspi->msg_queue);
 
-	mcspi->ick = clk_get(&pdev->dev, "mcspi_ick");
+	mcspi->ick = clk_get(&pdev->dev, "ick");
 	if (IS_ERR(mcspi->ick)) {
 		dev_dbg(&pdev->dev, "can't get mcspi_ick\n");
 		status = PTR_ERR(mcspi->ick);
 		goto err1a;
 	}
-	mcspi->fck = clk_get(&pdev->dev, "mcspi_fck");
+	mcspi->fck = clk_get(&pdev->dev, "fck");
 	if (IS_ERR(mcspi->fck)) {
 		dev_dbg(&pdev->dev, "can't get mcspi_fck\n");
 		status = PTR_ERR(mcspi->fck);
diff --git a/drivers/spi/omap_uwire.c b/drivers/spi/omap_uwire.c
index bab6ff061e9..fe8b9ac0cce 100644
--- a/drivers/spi/omap_uwire.c
+++ b/drivers/spi/omap_uwire.c
@@ -245,7 +245,7 @@ static int uwire_txrx(struct spi_device *spi, struct spi_transfer *t)
 
 #ifdef	VERBOSE
 			pr_debug("%s: write-%d =%04x\n",
-					spi->dev.bus_id, bits, val);
+					dev_name(&spi->dev), bits, val);
 #endif
 			if (wait_uwire_csr_flag(CSRB, 0, 0))
 				goto eio;
@@ -305,7 +305,7 @@ static int uwire_txrx(struct spi_device *spi, struct spi_transfer *t)
 			status += bytes;
 #ifdef	VERBOSE
 			pr_debug("%s: read-%d =%04x\n",
-					spi->dev.bus_id, bits, val);
+					dev_name(&spi->dev), bits, val);
 #endif
 
 		}
@@ -331,7 +331,7 @@ static int uwire_setup_transfer(struct spi_device *spi, struct spi_transfer *t)
 	uwire = spi_master_get_devdata(spi->master);
 
 	if (spi->chip_select > 3) {
-		pr_debug("%s: cs%d?\n", spi->dev.bus_id, spi->chip_select);
+		pr_debug("%s: cs%d?\n", dev_name(&spi->dev), spi->chip_select);
 		status = -ENODEV;
 		goto done;
 	}
@@ -343,7 +343,7 @@ static int uwire_setup_transfer(struct spi_device *spi, struct spi_transfer *t)
 		bits = 8;
 
 	if (bits > 16) {
-		pr_debug("%s: wordsize %d?\n", spi->dev.bus_id, bits);
+		pr_debug("%s: wordsize %d?\n", dev_name(&spi->dev), bits);
 		status = -ENODEV;
 		goto done;
 	}
@@ -378,7 +378,7 @@ static int uwire_setup_transfer(struct spi_device *spi, struct spi_transfer *t)
 		hz = t->speed_hz;
 
 	if (!hz) {
-		pr_debug("%s: zero speed?\n", spi->dev.bus_id);
+		pr_debug("%s: zero speed?\n", dev_name(&spi->dev));
 		status = -EINVAL;
 		goto done;
 	}
@@ -406,7 +406,7 @@ static int uwire_setup_transfer(struct spi_device *spi, struct spi_transfer *t)
 	}
 	if (div1_idx == 4) {
 		pr_debug("%s: lowest clock %ld, need %d\n",
-			spi->dev.bus_id, rate / 10 / 8, hz);
+			dev_name(&spi->dev), rate / 10 / 8, hz);
 		status = -EDOM;
 		goto done;
 	}
@@ -506,11 +506,12 @@ static int __init uwire_probe(struct platform_device *pdev)
 
 	dev_set_drvdata(&pdev->dev, uwire);
 
-	uwire->ck = clk_get(&pdev->dev, "armxor_ck");
-	if (!uwire->ck || IS_ERR(uwire->ck)) {
-		dev_dbg(&pdev->dev, "no mpu_xor_clk ?\n");
+	uwire->ck = clk_get(&pdev->dev, "fck");
+	if (IS_ERR(uwire->ck)) {
+		status = PTR_ERR(uwire->ck);
+		dev_dbg(&pdev->dev, "no functional clock?\n");
 		spi_master_put(master);
-		return -ENODEV;
+		return status;
 	}
 	clk_enable(uwire->ck);
 
diff --git a/drivers/spi/orion_spi.c b/drivers/spi/orion_spi.c
index 014becb7d53..c8b0babdc2a 100644
--- a/drivers/spi/orion_spi.c
+++ b/drivers/spi/orion_spi.c
@@ -496,7 +496,7 @@ static int __init orion_spi_probe(struct platform_device *pdev)
 	}
 
 	if (!request_mem_region(r->start, (r->end - r->start) + 1,
-				pdev->dev.bus_id)) {
+				dev_name(&pdev->dev))) {
 		status = -EBUSY;
 		goto out;
 	}
diff --git a/drivers/spi/pxa2xx_spi.c b/drivers/spi/pxa2xx_spi.c
index d0fc4ca2f65..33fcef3150d 100644
--- a/drivers/spi/pxa2xx_spi.c
+++ b/drivers/spi/pxa2xx_spi.c
@@ -34,8 +34,6 @@
 #include <asm/delay.h>
 
 #include <mach/dma.h>
-#include <mach/hardware.h>
-#include <mach/pxa-regs.h>
 #include <mach/regs-ssp.h>
 #include <mach/ssp.h>
 #include <mach/pxa2xx_spi.h>
@@ -1333,7 +1331,7 @@ static int __init init_queue(struct driver_data *drv_data)
 
 	INIT_WORK(&drv_data->pump_messages, pump_messages);
 	drv_data->workqueue = create_singlethread_workqueue(
-					drv_data->master->dev.parent->bus_id);
+				dev_name(drv_data->master->dev.parent));
 	if (drv_data->workqueue == NULL)
 		return -EBUSY;
 
@@ -1462,7 +1460,7 @@ static int __init pxa2xx_spi_probe(struct platform_device *pdev)
 		drv_data->mask_sr = SSSR_TINT | SSSR_RFS | SSSR_TFS | SSSR_ROR;
 	}
 
-	status = request_irq(ssp->irq, ssp_int, 0, dev->bus_id, drv_data);
+	status = request_irq(ssp->irq, ssp_int, 0, dev_name(dev), drv_data);
 	if (status < 0) {
 		dev_err(&pdev->dev, "cannot get IRQ %d\n", ssp->irq);
 		goto out_error_master_alloc;
diff --git a/drivers/spi/spi_bfin5xx.c b/drivers/spi/spi_bfin5xx.c
index 7fea3cf4588..3410b0c55ed 100644
--- a/drivers/spi/spi_bfin5xx.c
+++ b/drivers/spi/spi_bfin5xx.c
@@ -1160,8 +1160,8 @@ static inline int init_queue(struct driver_data *drv_data)
 
 	/* init messages workqueue */
 	INIT_WORK(&drv_data->pump_messages, pump_messages);
-	drv_data->workqueue =
-	    create_singlethread_workqueue(drv_data->master->dev.parent->bus_id);
+	drv_data->workqueue = create_singlethread_workqueue(
+				dev_name(drv_data->master->dev.parent));
 	if (drv_data->workqueue == NULL)
 		return -EBUSY;
 
diff --git a/drivers/spi/spi_gpio.c b/drivers/spi/spi_gpio.c
index f5ed9721aab..26bd03e6185 100644
--- a/drivers/spi/spi_gpio.c
+++ b/drivers/spi/spi_gpio.c
@@ -178,8 +178,10 @@ static void spi_gpio_chipselect(struct spi_device *spi, int is_active)
 	if (is_active)
 		setsck(spi, spi->mode & SPI_CPOL);
 
-	/* SPI is normally active-low */
-	gpio_set_value(cs, (spi->mode & SPI_CS_HIGH) ? is_active : !is_active);
+	if (cs != SPI_GPIO_NO_CHIPSELECT) {
+		/* SPI is normally active-low */
+		gpio_set_value(cs, (spi->mode & SPI_CS_HIGH) ? is_active : !is_active);
+	}
 }
 
 static int spi_gpio_setup(struct spi_device *spi)
@@ -191,15 +193,17 @@ static int spi_gpio_setup(struct spi_device *spi)
 		return -EINVAL;
 
 	if (!spi->controller_state) {
-		status = gpio_request(cs, spi->dev.bus_id);
-		if (status)
-			return status;
-		status = gpio_direction_output(cs, spi->mode & SPI_CS_HIGH);
+		if (cs != SPI_GPIO_NO_CHIPSELECT) {
+			status = gpio_request(cs, dev_name(&spi->dev));
+			if (status)
+				return status;
+			status = gpio_direction_output(cs, spi->mode & SPI_CS_HIGH);
+		}
 	}
 	if (!status)
 		status = spi_bitbang_setup(spi);
 	if (status) {
-		if (!spi->controller_state)
+		if (!spi->controller_state && cs != SPI_GPIO_NO_CHIPSELECT)
 			gpio_free(cs);
 	}
 	return status;
@@ -209,7 +213,8 @@ static void spi_gpio_cleanup(struct spi_device *spi)
 {
 	unsigned long	cs = (unsigned long) spi->controller_data;
 
-	gpio_free(cs);
+	if (cs != SPI_GPIO_NO_CHIPSELECT)
+		gpio_free(cs);
 	spi_bitbang_cleanup(spi);
 }
 
diff --git a/drivers/spi/spi_imx.c b/drivers/spi/spi_imx.c
index 269a55ec52e..0480d8bb19d 100644
--- a/drivers/spi/spi_imx.c
+++ b/drivers/spi/spi_imx.c
@@ -1381,7 +1381,7 @@ static int __init init_queue(struct driver_data *drv_data)
 
 	INIT_WORK(&drv_data->work, pump_messages);
 	drv_data->workqueue = create_singlethread_workqueue(
-					drv_data->master->dev.parent->bus_id);
+				dev_name(drv_data->master->dev.parent));
 	if (drv_data->workqueue == NULL)
 		return -EBUSY;
 
@@ -1525,7 +1525,8 @@ static int __init spi_imx_probe(struct platform_device *pdev)
 		status = -ENODEV;
 		goto err_no_irqres;
 	}
-	status = request_irq(irq, spi_int, IRQF_DISABLED, dev->bus_id, drv_data);
+	status = request_irq(irq, spi_int, IRQF_DISABLED,
+			     dev_name(dev), drv_data);
 	if (status < 0) {
 		dev_err(&pdev->dev, "probe - cannot get IRQ (%d)\n", status);
 		goto err_no_irqres;
diff --git a/drivers/spi/spi_mpc83xx.c b/drivers/spi/spi_mpc83xx.c
index ac0e3e4b3c5..f4573a96af2 100644
--- a/drivers/spi/spi_mpc83xx.c
+++ b/drivers/spi/spi_mpc83xx.c
@@ -14,6 +14,8 @@
 #include <linux/init.h>
 #include <linux/types.h>
 #include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/err.h>
 #include <linux/completion.h>
 #include <linux/interrupt.h>
 #include <linux/delay.h>
@@ -23,7 +25,13 @@
 #include <linux/spi/spi_bitbang.h>
 #include <linux/platform_device.h>
 #include <linux/fsl_devices.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+#include <linux/gpio.h>
+#include <linux/of_gpio.h>
+#include <linux/of_spi.h>
 
+#include <sysdev/fsl_soc.h>
 #include <asm/irq.h>
 #include <asm/io.h>
 
@@ -79,7 +87,7 @@ struct mpc83xx_spi {
 	u32(*get_tx) (struct mpc83xx_spi *);
 
 	unsigned int count;
-	int irq;
+	unsigned int irq;
 
 	unsigned nsecs;		/* (clock cycle time)/2 */
 
@@ -89,9 +97,6 @@ struct mpc83xx_spi {
 
 	bool qe_mode;
 
-	void (*activate_cs) (u8 cs, u8 polarity);
-	void (*deactivate_cs) (u8 cs, u8 polarity);
-
 	u8 busy;
 
 	struct workqueue_struct *workqueue;
@@ -123,6 +128,7 @@ static inline u32 mpc83xx_spi_read_reg(__be32 __iomem * reg)
 }
 
 #define MPC83XX_SPI_RX_BUF(type) 					  \
+static									  \
 void mpc83xx_spi_rx_buf_##type(u32 data, struct mpc83xx_spi *mpc83xx_spi) \
 {									  \
 	type * rx = mpc83xx_spi->rx;					  \
@@ -131,6 +137,7 @@ void mpc83xx_spi_rx_buf_##type(u32 data, struct mpc83xx_spi *mpc83xx_spi) \
 }
 
 #define MPC83XX_SPI_TX_BUF(type)				\
+static								\
 u32 mpc83xx_spi_tx_buf_##type(struct mpc83xx_spi *mpc83xx_spi)	\
 {								\
 	u32 data;						\
@@ -151,15 +158,14 @@ MPC83XX_SPI_TX_BUF(u32)
 
 static void mpc83xx_spi_chipselect(struct spi_device *spi, int value)
 {
-	struct mpc83xx_spi *mpc83xx_spi;
-	u8 pol = spi->mode & SPI_CS_HIGH ? 1 : 0;
+	struct mpc83xx_spi *mpc83xx_spi = spi_master_get_devdata(spi->master);
+	struct fsl_spi_platform_data *pdata = spi->dev.parent->platform_data;
+	bool pol = spi->mode & SPI_CS_HIGH;
 	struct spi_mpc83xx_cs	*cs = spi->controller_state;
 
-	mpc83xx_spi = spi_master_get_devdata(spi->master);
-
 	if (value == BITBANG_CS_INACTIVE) {
-		if (mpc83xx_spi->deactivate_cs)
-			mpc83xx_spi->deactivate_cs(spi->chip_select, pol);
+		if (pdata->cs_control)
+			pdata->cs_control(spi, !pol);
 	}
 
 	if (value == BITBANG_CS_ACTIVE) {
@@ -172,7 +178,7 @@ static void mpc83xx_spi_chipselect(struct spi_device *spi, int value)
 
 		if (cs->hw_mode != regval) {
 			unsigned long flags;
-			void *tmp_ptr = &mpc83xx_spi->base->mode;
+			__be32 __iomem *mode = &mpc83xx_spi->base->mode;
 
 			regval = cs->hw_mode;
 			/* Turn off IRQs locally to minimize time that
@@ -180,12 +186,12 @@ static void mpc83xx_spi_chipselect(struct spi_device *spi, int value)
 			 */
 			local_irq_save(flags);
 			/* Turn off SPI unit prior changing mode */
-			mpc83xx_spi_write_reg(tmp_ptr, regval & ~SPMODE_ENABLE);
-			mpc83xx_spi_write_reg(tmp_ptr, regval);
+			mpc83xx_spi_write_reg(mode, regval & ~SPMODE_ENABLE);
+			mpc83xx_spi_write_reg(mode, regval);
 			local_irq_restore(flags);
 		}
-		if (mpc83xx_spi->activate_cs)
-			mpc83xx_spi->activate_cs(spi->chip_select, pol);
+		if (pdata->cs_control)
+			pdata->cs_control(spi, pol);
 	}
 }
 
@@ -284,7 +290,7 @@ int mpc83xx_spi_setup_transfer(struct spi_device *spi, struct spi_transfer *t)
 	regval =  mpc83xx_spi_read_reg(&mpc83xx_spi->base->mode);
 	if (cs->hw_mode != regval) {
 		unsigned long flags;
-		void *tmp_ptr = &mpc83xx_spi->base->mode;
+		__be32 __iomem *mode = &mpc83xx_spi->base->mode;
 
 		regval = cs->hw_mode;
 		/* Turn off IRQs locally to minimize time
@@ -292,8 +298,8 @@ int mpc83xx_spi_setup_transfer(struct spi_device *spi, struct spi_transfer *t)
 		 */
 		local_irq_save(flags);
 		/* Turn off SPI unit prior changing mode */
-		mpc83xx_spi_write_reg(tmp_ptr, regval & ~SPMODE_ENABLE);
-		mpc83xx_spi_write_reg(tmp_ptr, regval);
+		mpc83xx_spi_write_reg(mode, regval & ~SPMODE_ENABLE);
+		mpc83xx_spi_write_reg(mode, regval);
 		local_irq_restore(flags);
 	}
 	return 0;
@@ -483,7 +489,7 @@ static int mpc83xx_spi_setup(struct spi_device *spi)
 	return 0;
 }
 
-irqreturn_t mpc83xx_spi_irq(s32 irq, void *context_data)
+static irqreturn_t mpc83xx_spi_irq(s32 irq, void *context_data)
 {
 	struct mpc83xx_spi *mpc83xx_spi = context_data;
 	u32 event;
@@ -545,43 +551,28 @@ static void mpc83xx_spi_cleanup(struct spi_device *spi)
 	kfree(spi->controller_state);
 }
 
-static int __init mpc83xx_spi_probe(struct platform_device *dev)
+static struct spi_master * __devinit
+mpc83xx_spi_probe(struct device *dev, struct resource *mem, unsigned int irq)
 {
+	struct fsl_spi_platform_data *pdata = dev->platform_data;
 	struct spi_master *master;
 	struct mpc83xx_spi *mpc83xx_spi;
-	struct fsl_spi_platform_data *pdata;
-	struct resource *r;
 	u32 regval;
 	int ret = 0;
 
-	/* Get resources(memory, IRQ) associated with the device */
-	master = spi_alloc_master(&dev->dev, sizeof(struct mpc83xx_spi));
-
+	master = spi_alloc_master(dev, sizeof(struct mpc83xx_spi));
 	if (master == NULL) {
 		ret = -ENOMEM;
 		goto err;
 	}
 
-	platform_set_drvdata(dev, master);
-	pdata = dev->dev.platform_data;
+	dev_set_drvdata(dev, master);
 
-	if (pdata == NULL) {
-		ret = -ENODEV;
-		goto free_master;
-	}
-
-	r = platform_get_resource(dev, IORESOURCE_MEM, 0);
-	if (r == NULL) {
-		ret = -ENODEV;
-		goto free_master;
-	}
 	master->setup = mpc83xx_spi_setup;
 	master->transfer = mpc83xx_spi_transfer;
 	master->cleanup = mpc83xx_spi_cleanup;
 
 	mpc83xx_spi = spi_master_get_devdata(master);
-	mpc83xx_spi->activate_cs = pdata->activate_cs;
-	mpc83xx_spi->deactivate_cs = pdata->deactivate_cs;
 	mpc83xx_spi->qe_mode = pdata->qe_mode;
 	mpc83xx_spi->get_rx = mpc83xx_spi_rx_buf_u8;
 	mpc83xx_spi->get_tx = mpc83xx_spi_tx_buf_u8;
@@ -596,18 +587,13 @@ static int __init mpc83xx_spi_probe(struct platform_device *dev)
 
 	init_completion(&mpc83xx_spi->done);
 
-	mpc83xx_spi->base = ioremap(r->start, r->end - r->start + 1);
+	mpc83xx_spi->base = ioremap(mem->start, mem->end - mem->start + 1);
 	if (mpc83xx_spi->base == NULL) {
 		ret = -ENOMEM;
 		goto put_master;
 	}
 
-	mpc83xx_spi->irq = platform_get_irq(dev, 0);
-
-	if (mpc83xx_spi->irq < 0) {
-		ret = -ENXIO;
-		goto unmap_io;
-	}
+	mpc83xx_spi->irq = irq;
 
 	/* Register for SPI Interrupt */
 	ret = request_irq(mpc83xx_spi->irq, mpc83xx_spi_irq,
@@ -637,7 +623,7 @@ static int __init mpc83xx_spi_probe(struct platform_device *dev)
 	INIT_LIST_HEAD(&mpc83xx_spi->queue);
 
 	mpc83xx_spi->workqueue = create_singlethread_workqueue(
-		master->dev.parent->bus_id);
+		dev_name(master->dev.parent));
 	if (mpc83xx_spi->workqueue == NULL) {
 		ret = -EBUSY;
 		goto free_irq;
@@ -649,9 +635,9 @@ static int __init mpc83xx_spi_probe(struct platform_device *dev)
 
 	printk(KERN_INFO
 	       "%s: MPC83xx SPI Controller driver at 0x%p (irq = %d)\n",
-	       dev->dev.bus_id, mpc83xx_spi->base, mpc83xx_spi->irq);
+	       dev_name(dev), mpc83xx_spi->base, mpc83xx_spi->irq);
 
-	return ret;
+	return master;
 
 unreg_master:
 	destroy_workqueue(mpc83xx_spi->workqueue);
@@ -661,18 +647,16 @@ unmap_io:
 	iounmap(mpc83xx_spi->base);
 put_master:
 	spi_master_put(master);
-free_master:
-	kfree(master);
 err:
-	return ret;
+	return ERR_PTR(ret);
 }
 
-static int __exit mpc83xx_spi_remove(struct platform_device *dev)
+static int __devexit mpc83xx_spi_remove(struct device *dev)
 {
 	struct mpc83xx_spi *mpc83xx_spi;
 	struct spi_master *master;
 
-	master = platform_get_drvdata(dev);
+	master = dev_get_drvdata(dev);
 	mpc83xx_spi = spi_master_get_devdata(master);
 
 	flush_workqueue(mpc83xx_spi->workqueue);
@@ -685,23 +669,293 @@ static int __exit mpc83xx_spi_remove(struct platform_device *dev)
 	return 0;
 }
 
+struct mpc83xx_spi_probe_info {
+	struct fsl_spi_platform_data pdata;
+	int *gpios;
+	bool *alow_flags;
+};
+
+static struct mpc83xx_spi_probe_info *
+to_of_pinfo(struct fsl_spi_platform_data *pdata)
+{
+	return container_of(pdata, struct mpc83xx_spi_probe_info, pdata);
+}
+
+static void mpc83xx_spi_cs_control(struct spi_device *spi, bool on)
+{
+	struct device *dev = spi->dev.parent;
+	struct mpc83xx_spi_probe_info *pinfo = to_of_pinfo(dev->platform_data);
+	u16 cs = spi->chip_select;
+	int gpio = pinfo->gpios[cs];
+	bool alow = pinfo->alow_flags[cs];
+
+	gpio_set_value(gpio, on ^ alow);
+}
+
+static int of_mpc83xx_spi_get_chipselects(struct device *dev)
+{
+	struct device_node *np = dev_archdata_get_node(&dev->archdata);
+	struct fsl_spi_platform_data *pdata = dev->platform_data;
+	struct mpc83xx_spi_probe_info *pinfo = to_of_pinfo(pdata);
+	unsigned int ngpios;
+	int i = 0;
+	int ret;
+
+	ngpios = of_gpio_count(np);
+	if (!ngpios) {
+		/*
+		 * SPI w/o chip-select line. One SPI device is still permitted
+		 * though.
+		 */
+		pdata->max_chipselect = 1;
+		return 0;
+	}
+
+	pinfo->gpios = kmalloc(ngpios * sizeof(pinfo->gpios), GFP_KERNEL);
+	if (!pinfo->gpios)
+		return -ENOMEM;
+	memset(pinfo->gpios, -1, ngpios * sizeof(pinfo->gpios));
+
+	pinfo->alow_flags = kzalloc(ngpios * sizeof(pinfo->alow_flags),
+				    GFP_KERNEL);
+	if (!pinfo->alow_flags) {
+		ret = -ENOMEM;
+		goto err_alloc_flags;
+	}
+
+	for (; i < ngpios; i++) {
+		int gpio;
+		enum of_gpio_flags flags;
+
+		gpio = of_get_gpio_flags(np, i, &flags);
+		if (!gpio_is_valid(gpio)) {
+			dev_err(dev, "invalid gpio #%d: %d\n", i, gpio);
+			goto err_loop;
+		}
+
+		ret = gpio_request(gpio, dev_name(dev));
+		if (ret) {
+			dev_err(dev, "can't request gpio #%d: %d\n", i, ret);
+			goto err_loop;
+		}
+
+		pinfo->gpios[i] = gpio;
+		pinfo->alow_flags[i] = flags & OF_GPIO_ACTIVE_LOW;
+
+		ret = gpio_direction_output(pinfo->gpios[i],
+					    pinfo->alow_flags[i]);
+		if (ret) {
+			dev_err(dev, "can't set output direction for gpio "
+				"#%d: %d\n", i, ret);
+			goto err_loop;
+		}
+	}
+
+	pdata->max_chipselect = ngpios;
+	pdata->cs_control = mpc83xx_spi_cs_control;
+
+	return 0;
+
+err_loop:
+	while (i >= 0) {
+		if (gpio_is_valid(pinfo->gpios[i]))
+			gpio_free(pinfo->gpios[i]);
+		i--;
+	}
+
+	kfree(pinfo->alow_flags);
+	pinfo->alow_flags = NULL;
+err_alloc_flags:
+	kfree(pinfo->gpios);
+	pinfo->gpios = NULL;
+	return ret;
+}
+
+static int of_mpc83xx_spi_free_chipselects(struct device *dev)
+{
+	struct fsl_spi_platform_data *pdata = dev->platform_data;
+	struct mpc83xx_spi_probe_info *pinfo = to_of_pinfo(pdata);
+	int i;
+
+	if (!pinfo->gpios)
+		return 0;
+
+	for (i = 0; i < pdata->max_chipselect; i++) {
+		if (gpio_is_valid(pinfo->gpios[i]))
+			gpio_free(pinfo->gpios[i]);
+	}
+
+	kfree(pinfo->gpios);
+	kfree(pinfo->alow_flags);
+	return 0;
+}
+
+static int __devinit of_mpc83xx_spi_probe(struct of_device *ofdev,
+					  const struct of_device_id *ofid)
+{
+	struct device *dev = &ofdev->dev;
+	struct device_node *np = ofdev->node;
+	struct mpc83xx_spi_probe_info *pinfo;
+	struct fsl_spi_platform_data *pdata;
+	struct spi_master *master;
+	struct resource mem;
+	struct resource irq;
+	const void *prop;
+	int ret = -ENOMEM;
+
+	pinfo = kzalloc(sizeof(*pinfo), GFP_KERNEL);
+	if (!pinfo)
+		return -ENOMEM;
+
+	pdata = &pinfo->pdata;
+	dev->platform_data = pdata;
+
+	/* Allocate bus num dynamically. */
+	pdata->bus_num = -1;
+
+	/* SPI controller is either clocked from QE or SoC clock. */
+	pdata->sysclk = get_brgfreq();
+	if (pdata->sysclk == -1) {
+		pdata->sysclk = fsl_get_sys_freq();
+		if (pdata->sysclk == -1) {
+			ret = -ENODEV;
+			goto err_clk;
+		}
+	}
+
+	prop = of_get_property(np, "mode", NULL);
+	if (prop && !strcmp(prop, "cpu-qe"))
+		pdata->qe_mode = 1;
+
+	ret = of_mpc83xx_spi_get_chipselects(dev);
+	if (ret)
+		goto err;
+
+	ret = of_address_to_resource(np, 0, &mem);
+	if (ret)
+		goto err;
+
+	ret = of_irq_to_resource(np, 0, &irq);
+	if (!ret) {
+		ret = -EINVAL;
+		goto err;
+	}
+
+	master = mpc83xx_spi_probe(dev, &mem, irq.start);
+	if (IS_ERR(master)) {
+		ret = PTR_ERR(master);
+		goto err;
+	}
+
+	of_register_spi_devices(master, np);
+
+	return 0;
+
+err:
+	of_mpc83xx_spi_free_chipselects(dev);
+err_clk:
+	kfree(pinfo);
+	return ret;
+}
+
+static int __devexit of_mpc83xx_spi_remove(struct of_device *ofdev)
+{
+	int ret;
+
+	ret = mpc83xx_spi_remove(&ofdev->dev);
+	if (ret)
+		return ret;
+	of_mpc83xx_spi_free_chipselects(&ofdev->dev);
+	return 0;
+}
+
+static const struct of_device_id of_mpc83xx_spi_match[] = {
+	{ .compatible = "fsl,spi" },
+	{},
+};
+MODULE_DEVICE_TABLE(of, of_mpc83xx_spi_match);
+
+static struct of_platform_driver of_mpc83xx_spi_driver = {
+	.name		= "mpc83xx_spi",
+	.match_table	= of_mpc83xx_spi_match,
+	.probe		= of_mpc83xx_spi_probe,
+	.remove		= __devexit_p(of_mpc83xx_spi_remove),
+};
+
+#ifdef CONFIG_MPC832x_RDB
+/*
+ * 				XXX XXX XXX
+ * This is "legacy" platform driver, was used by the MPC8323E-RDB boards
+ * only. The driver should go away soon, since newer MPC8323E-RDB's device
+ * tree can work with OpenFirmware driver. But for now we support old trees
+ * as well.
+ */
+static int __devinit plat_mpc83xx_spi_probe(struct platform_device *pdev)
+{
+	struct resource *mem;
+	unsigned int irq;
+	struct spi_master *master;
+
+	if (!pdev->dev.platform_data)
+		return -EINVAL;
+
+	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!mem)
+		return -EINVAL;
+
+	irq = platform_get_irq(pdev, 0);
+	if (!irq)
+		return -EINVAL;
+
+	master = mpc83xx_spi_probe(&pdev->dev, mem, irq);
+	if (IS_ERR(master))
+		return PTR_ERR(master);
+	return 0;
+}
+
+static int __devexit plat_mpc83xx_spi_remove(struct platform_device *pdev)
+{
+	return mpc83xx_spi_remove(&pdev->dev);
+}
+
 MODULE_ALIAS("platform:mpc83xx_spi");
 static struct platform_driver mpc83xx_spi_driver = {
-	.remove = __exit_p(mpc83xx_spi_remove),
+	.probe = plat_mpc83xx_spi_probe,
+	.remove = __exit_p(plat_mpc83xx_spi_remove),
 	.driver = {
 		.name = "mpc83xx_spi",
 		.owner = THIS_MODULE,
 	},
 };
 
+static bool legacy_driver_failed;
+
+static void __init legacy_driver_register(void)
+{
+	legacy_driver_failed = platform_driver_register(&mpc83xx_spi_driver);
+}
+
+static void __exit legacy_driver_unregister(void)
+{
+	if (legacy_driver_failed)
+		return;
+	platform_driver_unregister(&mpc83xx_spi_driver);
+}
+#else
+static void __init legacy_driver_register(void) {}
+static void __exit legacy_driver_unregister(void) {}
+#endif /* CONFIG_MPC832x_RDB */
+
 static int __init mpc83xx_spi_init(void)
 {
-	return platform_driver_probe(&mpc83xx_spi_driver, mpc83xx_spi_probe);
+	legacy_driver_register();
+	return of_register_platform_driver(&of_mpc83xx_spi_driver);
 }
 
 static void __exit mpc83xx_spi_exit(void)
 {
-	platform_driver_unregister(&mpc83xx_spi_driver);
+	of_unregister_platform_driver(&of_mpc83xx_spi_driver);
+	legacy_driver_unregister();
 }
 
 module_init(mpc83xx_spi_init);
diff --git a/drivers/spi/spi_txx9.c b/drivers/spi/spi_txx9.c
index 2296f37ea3c..29cbb065618 100644
--- a/drivers/spi/spi_txx9.c
+++ b/drivers/spi/spi_txx9.c
@@ -404,7 +404,8 @@ static int __init txx9spi_probe(struct platform_device *dev)
 	if (ret)
 		goto exit;
 
-	c->workqueue = create_singlethread_workqueue(master->dev.parent->bus_id);
+	c->workqueue = create_singlethread_workqueue(
+				dev_name(master->dev.parent));
 	if (!c->workqueue)
 		goto exit_busy;
 	c->last_chipselect = -1;
diff --git a/drivers/spi/xilinx_spi.c b/drivers/spi/xilinx_spi.c
index fe7e5f35e5d..494d3f756e2 100644
--- a/drivers/spi/xilinx_spi.c
+++ b/drivers/spi/xilinx_spi.c
@@ -354,7 +354,7 @@ static int __init xilinx_spi_of_probe(struct of_device *ofdev,
 	if (xspi->regs == NULL) {
 		rc = -ENOMEM;
 		dev_warn(&ofdev->dev, "ioremap failure\n");
-		goto put_master;
+		goto release_mem;
 	}
 	xspi->irq = r_irq->start;
 
@@ -365,7 +365,7 @@ static int __init xilinx_spi_of_probe(struct of_device *ofdev,
 	prop = of_get_property(ofdev->node, "xlnx,num-ss-bits", &len);
 	if (!prop || len < sizeof(*prop)) {
 		dev_warn(&ofdev->dev, "no 'xlnx,num-ss-bits' property\n");
-		goto put_master;
+		goto unmap_io;
 	}
 	master->num_chipselect = *prop;
 
@@ -397,6 +397,8 @@ free_irq:
 	free_irq(xspi->irq, xspi);
 unmap_io:
 	iounmap(xspi->regs);
+release_mem:
+	release_mem_region(r_mem->start, resource_size(r_mem));
 put_master:
 	spi_master_put(master);
 	return rc;
@@ -406,6 +408,7 @@ static int __devexit xilinx_spi_remove(struct of_device *ofdev)
 {
 	struct xilinx_spi *xspi;
 	struct spi_master *master;
+	struct resource r_mem;
 
 	master = platform_get_drvdata(ofdev);
 	xspi = spi_master_get_devdata(master);
@@ -413,6 +416,8 @@ static int __devexit xilinx_spi_remove(struct of_device *ofdev)
 	spi_bitbang_stop(&xspi->bitbang);
 	free_irq(xspi->irq, xspi);
 	iounmap(xspi->regs);
+	if (!of_address_to_resource(ofdev->node, 0, &r_mem))
+		release_mem_region(r_mem.start, resource_size(&r_mem));
 	dev_set_drvdata(&ofdev->dev, 0);
 	spi_master_put(xspi->bitbang.master);